X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdecoder.cc;h=52b22fa067955b48341b40947a728161f65c6152;hb=a8ed320d887056ab84dd7068e9a9560d955e416d;hp=73e17e7ead91a8481763b3da63216cfdb9c62c02;hpb=70447e72a5595fa03eb0a82b5e93247fcc5cad2b;p=dcpomatic.git

diff --git a/src/lib/decoder.cc b/src/lib/decoder.cc
index 73e17e7ea..52b22fa06 100644
--- a/src/lib/decoder.cc
+++ b/src/lib/decoder.cc
@@ -26,7 +26,6 @@
 #include <boost/lexical_cast.hpp>
 #include "film.h"
 #include "format.h"
-#include "job.h"
 #include "options.h"
 #include "exceptions.h"
 #include "image.h"
@@ -37,6 +36,8 @@
 #include "subtitle.h"
 #include "filter_graph.h"
 
+#include "i18n.h"
+
 using std::string;
 using std::stringstream;
 using std::min;
@@ -46,129 +47,29 @@ using boost::shared_ptr;
 using boost::optional;
 
 /** @param f Film.
- *  @param o Options.
- *  @param j Job that we are running within, or 0
- *  @param minimal true to do the bare minimum of work; just run through the content.  Useful for acquiring
- *  accurate frame counts as quickly as possible.  This generates no video or audio output.
+ *  @param o Decode options.
  */
-Decoder::Decoder (boost::shared_ptr<Film> f, boost::shared_ptr<const Options> o, Job* j)
+Decoder::Decoder (boost::shared_ptr<Film> f, DecodeOptions o)
 	: _film (f)
 	, _opt (o)
-	, _job (j)
-	, _video_frame (0)
 {
-	
+	_film_connection = f->Changed.connect (bind (&Decoder::film_changed, this, _1));
 }
 
-/** Start decoding */
-void
-Decoder::go ()
-{
-	if (_job && !_film->dcp_length()) {
-		_job->set_progress_unknown ();
-	}
-
-	while (pass () == false) {
-		if (_job && _film->dcp_length()) {
-			_job->set_progress (float (_video_frame) / _film->length().get());
-		}
-	}
-}
-
-/** Called to tell the world that some audio data is ready
- *  @param audio Audio data.
+/** Seek to a position as a source timestamp in seconds.
+ *  @return true on error.
  */
-void
-Decoder::process_audio (shared_ptr<AudioBuffers> audio)
+bool
+Decoder::seek (double)
 {
-	/* Maybe apply gain */
-	if (_film->audio_gain() != 0) {
-		float const linear_gain = pow (10, _film->audio_gain() / 20);
-		for (int i = 0; i < audio->channels(); ++i) {
-			for (int j = 0; j < audio->frames(); ++j) {
-				audio->data(i)[j] *= linear_gain;
-			}
-		}
-	}
-
-	Audio (audio);
+	throw DecodeError (N_("decoder does not support seek"));
 }
 
-/** Called by subclasses to tell the world that some video data is ready.
- *  We do some post-processing / filtering then emit it for listeners.
- *  @param frame to decode; caller manages memory.
+/** Seek so that the next frame we will produce is the same as the last one.
+ *  @return true on error.
  */
-void
-Decoder::process_video (AVFrame* frame)
-{
-	shared_ptr<FilterGraph> graph;
-
-	list<shared_ptr<FilterGraph> >::iterator i = _filter_graphs.begin();
-	while (i != _filter_graphs.end() && !(*i)->can_process (Size (frame->width, frame->height), (AVPixelFormat) frame->format)) {
-		++i;
-	}
-
-	if (i == _filter_graphs.end ()) {
-		graph.reset (new FilterGraph (_film, this, _opt->apply_crop, Size (frame->width, frame->height), (AVPixelFormat) frame->format));
-		_filter_graphs.push_back (graph);
-		_film->log()->log (String::compose ("New graph for %1x%2, pixel format %3", frame->width, frame->height, frame->format));
-	} else {
-		graph = *i;
-	}
-
-	list<shared_ptr<Image> > images = graph->process (frame);
-
-	for (list<shared_ptr<Image> >::iterator i = images.begin(); i != images.end(); ++i) {
-		shared_ptr<Subtitle> sub;
-		if (_timed_subtitle && _timed_subtitle->displayed_at (double (video_frame()) / _film->frames_per_second())) {
-			sub = _timed_subtitle->subtitle ();
-		}
-
-		emit_video (*i, sub);
-	}
-}
-
-void
-Decoder::repeat_last_video ()
-{
-	if (!_last_image) {
-		_last_image.reset (new CompactImage (pixel_format(), native_size()));
-		_last_image->make_black ();
-	}
-
-	emit_video (_last_image, _last_subtitle);
-}
-
-void
-Decoder::emit_video (shared_ptr<Image> image, shared_ptr<Subtitle> sub)
-{
-	TIMING ("Decoder emits %1", _video_frame);
-	Video (image, sub);
-	++_video_frame;
-
-	_last_image = image;
-	_last_subtitle = sub;
-}
-
-void
-Decoder::process_subtitle (shared_ptr<TimedSubtitle> s)
-{
-	_timed_subtitle = s;
-	
-	if (_timed_subtitle && _opt->apply_crop) {
-		Position const p = _timed_subtitle->subtitle()->position ();
-		_timed_subtitle->subtitle()->set_position (Position (p.x - _film->crop().left, p.y - _film->crop().top));
-	}
-}
-
-void
-Decoder::set_audio_stream (optional<AudioStream> s)
-{
-	_audio_stream = s;
-}
-
-void
-Decoder::set_subtitle_stream (optional<SubtitleStream> s)
+bool
+Decoder::seek_to_last ()
 {
-	_subtitle_stream = s;
+	throw DecodeError (N_("decoder does not support seek"));
 }